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jQWidgets jqxTreeGrid cellValueChanged Event

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  • Last Updated : 07 Oct, 2021
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jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxTreeGrid is used for representing data in a tree-like structure. This widget is useful for displaying multi-column of hierarchical data, data paging, sorting and filtering, data editing, column resizing, fixed columns, conditional formatting, aggregates, and rows selection. These widgets also read and display the data from any type of data sources such as XML, JSON, Array, CSV, or TSV.

The cellValueChanged event is used to trigger when a cell value of the specified jqxTreeGrid is changed.

Syntax:

$('#treeGrid').on('cellValueChanged',  function (event) {
    // Argument of the Event
    var args = event.args;
    // The cell value
    var value = args.value;
    // Old cell value
    var oldValue = args.oldValue;
    // Row data.
    var row = args.row;
    // Row key
    var rowKey args.key;
    // Column data field.
    var dataField = args.dataField;
});

Linked Files: Download jQWidgets from the given link. In the HTML file, locate the script files in the downloaded folder.

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxscrollbar.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxlistbox.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdropdownlist.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdatatable.js”></script>

Example: The below example illustrates the jQWidgets jqxTreeGrid cellValueChanged event.

HTML




<!DOCTYPE html>
<html lang="en">
  <head>
    <link rel="stylesheet"
            href="
jqwidgets/styles/jqx.base.css"
            type="text/css" />
    <script type="text/javascript" 
            src="scripts/jquery.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxcore.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdata.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxbuttons.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxscrollbar.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxlistbox.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdropdownlist.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxdatatable.js">
    </script>
    <script type="text/javascript" 
            src="jqwidgets/jqxtreegrid.js">
    </script>
  </head>
  
  <body>
    <center>
      <h1 style="color: green">GeeksforGeeks</h1>
      <h3>jQWidgets jqxTreeGrid cellValueChanged Event</h3>
      <div id="jqxTreeGrid" style="margin: 25px"></div>
      <div id="log"></div>
        
      <script type="text/javascript">
        $(document).ready(function () {
          var A = [
            {
              ID: 1,
              Employee_Name: "Amit",
              Company: "GeeksforGeeks",
              Designation: "Content Writer",
              expanded: true,
              A1: [
                {
                  ID: 2,
                  Employee_Name: "Sumit",
                  Company: "Amazon",
                  Designation: "Software Engineer",
                },
                {
                  ID: 3,
                  Employee_Name: "Vivek",
                  Company: "Apple",
                  Designation: "Product Manager",
                  expanded: true,
                  A1: [
                    {
                      ID: 4,
                      Employee_Name: "Soni",
                      Company: "Flipkart",
                      Designation: "HR",
                    },
                  ],
                },
              ],
            },
          ];
  
          var Data_Source = {
            dataFields: [
              {
                name: "ID",
              },
              {
                name: "Employee_Name",
              },
              {
                name: "Company",
              },
              {
                name: "Designation",
              },
              {
                name: "A1",
                type: "array",
              },
              {
                name: "expanded",
              },
            ],
            hierarchy: {
              root: "A1",
            },
            id: "ID",
            localData: A,
          };
  
          var Data = new $.jqx.dataAdapter(Data_Source);
  
          $("#jqxTreeGrid").jqxTreeGrid({
            source: Data,
            editable: true,
            ready: function () {
              $("#jqxTreeGrid").jqxTreeGrid("expandRow", "1");
              $("#jqxTreeGrid").jqxTreeGrid("expandRow", "3");
            },
            columns: [
              {
                text: "Employee_Name",
                align: "center",
                dataField: "Employee_Name",
                width: 140,
              },
              {
                text: "Company",
                align: "center",
                dataField: "Company",
                width: 150,
              },
              {
                text: "Designation",
                align: "center",
                dataField: "Designation",
                width: 150,
              },
            ],
          });
          $("#jqxTreeGrid").on("cellValueChanged", function (event) {
            var Arguments = event.args;
            var Cell_Value = Arguments.value;
            $("#log").html(
              JSON.stringify("The new value of the cell is : " + Cell_Value)
            );
          });
        });
      </script>
    </center>
  </body>
</html>


Output:

Reference: https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxtreegrid/jquery-treegrid-api.htm?search=


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